Description
Zinc Sulfate Heptahydrate. CAS RN 7446-20-0. Formula Weight: 287.56. Granular, AR Grade, ACS, 99.0-103.0%. NH4: 0.001% max. As: 1ppm max. Ca: 0.005% max. Cl: 5ppm max. Fe: 0.001% max. Pb: 0.003% max. Mg: 0.005% max. Mn: 3ppm max. NO3: 0.002% max. K: 0.01% max. Na: 0.05% max. 2.5kg.